Hot Tub Filters
Various brands of hot tub filters including Pleatco, Filbur, Unicel, Filters Outpost, Great Barrier and other OEM spa filters are on sale.
Type in your filter model in the search box to find them.
Best deal in the house is our Outpost Filter brand of quality replacement filters: See the current Outpost hot tub filter collection.
See our full range of Filbur replacement spa filters as the current best quality full range of replacement spa filter cartridges.
We also offer Pleatco brand spa filters.
Need a Unicel replacement filter? We got those too.
Find all current and former model QCA Spas filters here.
Don't see the filter you need on our site? Contact us as we have access to many different filter types. Send us either the model number of the filter or dimensions/images of the filter to info@hottuboutpost.com.
Or measure your filter to find the right replacement.
-
Cal Spa Filter 50 Sq Ft Female Coarse Thread FIL50-5D13H15FCT-4
Now: $58.77RRP: $69.99Cal Spa Filter 50 Sq Ft Female Coarse Thread FIL50-5D13H15FCT-4 as used in Cal Spas and other brand hot tubs. Filter Cartridge 50 Sq Ftx 5"Odx 13"H X 1.5"Id, Female Coarse Thread. Featuring a top handle for ease of use...Now: $58.77RRP: $69.99 -
Spa Filter H40154 4CH-15 15Sqft 1 1/2 Inch SAE Threads
Now: $21.87RRP: $25.65H40154 hot tub spa filter fits certain size Waterway filter canisters. The bottom has 1 1/2 inch SAE coarse threads. The dimensions of this 15 sq.ft. spa filter are: Diameter: 4-5/8" Length: 5-3/16" Top: Handle Bottom: 1-1/2" SAE Threaded Replaces...Now: $21.87RRP: $25.65 -
Filter Set C7047 C4401 PRB17.5SFJHPAIR FC2386 R172606 817-3510 11802
Now: $46.88RRP: $58.99C7047 2 filter set Filter size 4 15/16" X 4 5/8", 35 SQ FT 2 1/8" center hole 2/SET 11802 C4401 PRB17.5SFJHPAIR FC2386 R172606 817-3510 11802 BEACHCOMBER DYNASTY HYDRO SPA COLEMAN PDC RAINBOW SUNDANCE THERMO SPAS WATERWAY Replaces...Now: $46.88RRP: $58.99 -
Microban 65Sqft Filter C-7256M FC-2971M Leisure Bay
Now: $88.77RRP: $99.96Microban 65Sqft Filter C-7256M FC-2971M Leisure Bay. Filter measures 14 11/16" by 5 5/16" diameter. Replaces MICROBAN 17540 C5374 PLBS75M FC2971M CAL SPAS LEISURE BAY REC. WAREHOUSE WATERWAY 8170015 R173600 LP 8170015 303433. Please allow 4-7...Now: $88.77RRP: $99.96 -
67.5 Sqft Spa Filter C-7218 16x7 Repl PPF67.5 FC-2170 074930
Now: $69.87RRP: $76.23C-7218 spa filter is a 67.5 sqft filter cartridge that replaces PPF67.6, FC-2170, Pentair Purex CF 074930 and 16801 filters. Length 16 Inches Diameter /Width 7 Inches Top: 2-15/16" openBottom: 2-15/16" open Sqft 67.6Now: $69.87RRP: $76.23 -
C-7042M Spa Filter 8 x 6 3/5 Microban FC-0311M PAS35-2-M PAS50SV-F2M
Now: $59.77RRP: $89.99C-7042M Spa Filter 35sqft replaces 50Sqft 8 x 6 3/5 Microban replaces blue microban filters FC-0311M,6CH502RA, and 35/50 sqft PAS35-2-M,PAS50SV-F2M. Bottom Physical Dimension 2-3/8"od Bottom Style Male Pipe Thread...Now: $59.77RRP: $89.99 -
Waterway Spa Filter Cartridge 817-4035
Now: $45.74RRP: $52.60Waterway Spa Filter Cartridge 817-4035 This filter is designed for use in Dynasty Spas Diameter 4-15/16"Length 9-1/4"Bottom Style Female SAE ThreadTop Style HandleBottom...Now: $45.74RRP: $52.60 -
Unicel Spa Filter C-7335 Twist Lock 35 Sqft 7 1/8 x 5 7/8 FC-3058
Now: $59.77RRP: $89.99Unicel Spa Filter C-7335 Twist Lock 35 Sqft 7 1/8 x 5 7/8 with closed castle style top. Replaces FC-3058 and other filters as used in D1 and other brand hot tubs. Application Dimension One Bottom Physical Dimension 2" Bottom...Now: $59.77RRP: $89.99 -
Spa Filter 4CH-949M Microban P4CH-949M
Now: $39.77RRP: $49.99Spa Filter 4CH-949M Microban P4CH-949M is a blue replacement filter. Blue Microban filter media material. 50sqft spa filter cartridge - 1-1/2"female SAE bottom threads, 5" diameter, 13-1/16" long. Proline, Diameter: 4-15/16", Length: 13-1/2" Top:...Now: $39.77RRP: $49.99 -
Pleatco PMAX50P4 35sqft Filter 1 1/2 MPT
Now: $37.99RRP: $48.99DISCONTINUED see H50353 Pleatco PMAX50P4 35sqft Filter 1 1/2 MPT fine threads. 35sqft, ht, 1-1/2" MPT male threads b, 5-3/4", 8"L, 3oz media Filter replaces 303883 , 4902-027 , 4902-069 , 5CH-35 , 645544003003 , AK-90109 , FC-0300 , PAS35 , PAS35P ,...Now: $37.99RRP: $48.99 -
Viking Spa 20 SqFt Filter Assembly 89727
Now: $178.77RRP: $212.99Viking Spa 20 SqFt Filter Canister Housing with 20Sqft Cartridge filter included 89727 Factory replacement filter assembly with filter. Front access filter assembly complete. Complete filter assembly includes basket and filter cartridge as well...Now: $178.77RRP: $212.99 -
Viking Spa 25 SqFt Cartridge Filter 81110
Now: $35.77RRP: $42.99Viking Spa 25 SqFt Cartridge Filter 81110 Factory replacement filter image currently unavailable, if you were referred to this part number , it is the correct 25 sqft filter cartridge for your select model Viking Spa. Contact us for assistance.Now: $35.77RRP: $42.99 -
Coast Spas Omega Filter Cartridge 817-0020
$34.36DISCONTINUED _ see P4CH-15 Coast Spas Omega Filter Cartridge 817-0020 15sqft filter cartridge. 1 1/2 inch SAE threads on bottom and a bar type handle on closed topLength 5 ¼” tall and 4 5/8” diameter$34.36 -
Master Spa Filter PMA45-2004-R Pleatco FC-1003 FC-1007 C-8341
Now: $54.99RRP: $68.99Master Spa Filter PMA45-2004-R Pleatco FC-1003 FC-1007 C-8341 Application Down East (Master), Master SpasBottom Physical Dimension 4"Bottom Style OpenDiameter 8"Length ...Now: $54.99RRP: $68.99 -
Unicel 25 SqFt Filter 5CH-25 Maax Freeflow Spas 6 x 5 5/8 x 1 1/2MPT
Now: $38.77RRP: $44.99DISCONTINUED - see replacement filter HTO50258 Unicel filter 5CH-25 for Maax, Vita, Freeflow and other spas. Bottom Physical Dimension 1-1/2" Bottom Style Male Pipe Thread (mpt) Diameter 5-5/8" Length 6" Media...Now: $38.77RRP: $44.99 -
Unicel C-7605 Filter 50Sqft 19 5/8 x 7
Now: $64.66RRP: $84.24Unicel C-7605 Filter 50Sqft 19 5/8" long x 7" diameter that replaces FC-0720 and PBH-50. top cone and shaped bottom opening.Now: $64.66RRP: $84.24 -
Master Spa X268532 Charge Filter PMA-EPR
Now: $65.77RRP: $74.99Master Spa Eco Pur charge filter Master Spa X268532 Charge Filter PMA-EPR, mineral Cartridge diameter - 2-1/16"Cartridge length - 7-3/4"Top configuration - Handle and 2" bottom hole2" bottom Eco Pur Charge filters by Master Spas can help reduce your...Now: $65.77RRP: $74.99 -
Maax 50 Sqft Filter 109340 LA Spas 10 x 5 1/4" Open
Now: $49.24RRP: $49.99Maax 50 Sqft Filter 109340 LA Spas 10 1/8" x 5 1/4" Open top and bottom 2 1/8" hole. 50 sqft filter media. This filter cartridge type used in select Maax and LA Spas.Now: $49.24RRP: $49.99 -
Cal Spa Filter 75 SqFt FIL75-5D145H2OE
Now: $51.77RRP: $58.99The Cal Spa Filter 75 SqFt FIL75-5D145H2OE is a 75 sqft filter cartridge in blue with open top and bottom is discontinued an no longer available. You will be sent the white/ non microfiber version - now ships as FIL75-5D145H2OE-4 version 4...Now: $51.77RRP: $58.99 -
Cal Spa 12x5 Filter 2 Inch MPT FIL50-5D13H2MFT-3
Now: $51.66RRP: $59.99Limited availability of this discontinued filter DISCONTINUED_ see p5ch-502 Cal Spa Filter FIL50-5D13H2MFT-3 is a 12 inch long x 5 inch outer diameter replacement filter with 2 inch mpt threads on bottom. Diameter: 5" Inner Diameter: 2"MPT Length: 12"...Now: $51.66RRP: $59.99 -
Coast Spa 25 Sqft Filter Cartridge 817-5010 2-Required
Now: $29.77RRP: $38.66Coast Spa 25 Sqft Filter Cartridge 817-5010 Face Diameter - 5 in Height - 6-1/2in each, 13 inches stacked Hole Size - 2-1/4 inch Price is per filter - 2-Required (25sqft each) to make this 50 sqft filter stack. Order this item x 2 for the set of 2...Now: $29.77RRP: $38.66 -
Pleatco C-8405 Filter FC-1973
$156.66DISCONTINUED Pleatco C-8405 Filter FC-1973 is 39 inches long and 8 7/8 inches wide. 4 inch top and bottom opening. 8-7/8, 39, 4, 4, 180, Replaces Filbur:FC-1973 also replaces C-8406 and FC-1974.$156.66 -
Cal Spa Filter 1 1/2 Inch Fem SAE FIL50-5D13H15FCT-3 Blue
Now: $58.77RRP: $69.99Currently unavailable, factory is recommending FIL50-5D13H15FCT-4 Cal Spa Filter 1 1/2 Inch Fem SAE FIL50-5D13H15FCT-3as used in Cal Spas and other brand hot tubs. The filter may be blue or white, depending on what Cal Spas is currently providing...Now: $58.77RRP: $69.99 -
Softub Spa Filter 8555 for 4 Inch Covers Microban 2009 and Older
Now: $40.00RRP: $53.45Item unavailable Softub Spa Filter 8555 for 4 Inch diameter drain Covers with blue Microban type Great Barrier media and fits spa model years 2009 and older. Diameter: 6 Inch Length: 7 3/4 Inch Bottom: 4 inch slip collar Top:...Now: $40.00RRP: $53.45 -
Softub Spa Filter 8553 Push On Snap On Microban 2009 and Newer
Now: $39.50RRP: $53.45Item unavailable. Softub Spa Filter 8553 8553CA Push On / Snap On type Great Barrier with blue Microban filter media and fits spa model years 2009 and Newer. Diameter: 6 Inch Length: 7 3/4 Inch Bottom: 5 1/2 inch slip collar Top:...Now: $39.50RRP: $53.45 -
PMA10-M Master Spa Filter 10 Sqft Microban X268055
Now: $33.99RRP: $39.75PMA10-M Master Spa Filter 10 Sqft Microban is a replacement blue cartridge filter for hot tubs. Diameter: 3-7/8" Length: 7-1/8" Top: 2-1/8"Open Bottom: 2-1/8"Open Media: Microban Filter Area: 10 sq ft Replaces:Filbur FC-1000, Pleatco PMA10-M,...Now: $33.99RRP: $39.75 -
Maax 35 Sqft Filter PMAX50P3 H50354-4PK 4-Pack
Now: $93.77RRP: $167.964-pack of Maax 35 Sqft Filters H50354 replaces PMAX50P3 and other Maax spa filters. TOP of filter: BOTTOM of filter: Diameter: 5 3/4" Length: 8 7/16" Top: handle Bottom: 1 1/2 SAE Media: 3oz Pleat Count: 210 This filter type used...Now: $93.77RRP: $167.96 -
Coast Spa 100 SqFt Filter H51002 FC-2975 AK-40082 XLS-514 8R5100 PLST80 C-5396 4-Pack
Now: $161.17RRP: $247.52Coast Spa 100 SqFt Filter H51002 TOP & BOTTOM of filter: Diameter: 5 5/16" Length: 21 5/16: Top: 2 1/8" open Bottom: 2 1/8" open Filter Media 3oz Pleat Count 222 Coast Spa 100 SqFt Filter H51002 replaces FC-2975 and...Now: $161.17RRP: $247.52 -
Coast Spa 100 SqFt Filter H51002 FC-2975 AK-40082 XLS-514 8R5100 PLST80 C-5396
Now: $56.77RRP: $71.88Coast Spa 100 SqFt Filter H51002. Item is for a single filter with open top and bottom. Need a filter 4-pack? See H51002-4PK TOP & BOTTOM of filter: Diameter: 5 5/16" Length: 21 5/16: Top: 2 1/8" open Bottom: 2 1/8" open Filter Media...Now: $56.77RRP: $71.88 -
Maax 35 Sqft Filter PMAX50P3 H50354
Now: $27.77RRP: $39.99Maax 35 Sqft Filter H50354 replaces PMAX50P3 and other Maax spa filters. TOP of filter: BOTTOM of filter: Diameter: 5 3/4" Length: 8 7/16" Top: handle Bottom: 1 1/2 SAE Media: 3oz Pleat Count: 210 This filter type...Now: $27.77RRP: $39.99 -
Clearwater Spa Filter 817-3501 Evergreen Recreation Birch Bay
Now: $24.77RRP: $35.99Clearwater Spa Filter 817-3501 Evergreen Recreation Birch Bay 50 sq.ft. cartridge filter for Birch Bay Recreation Series and Evergreen Serie spas Length: 9 1/4" Diameter: 5" Center hole top and bottom: 2 1/8" opening 50 Square Ft...Now: $24.77RRP: $35.99 -
Clearwater Spa Filter 252520-800 Birch Bay 50Sqft
Now: $29.77RRP: $49.8950 SqFt. replacement spa filter cartridge 25252-800-000 for select Northwest Series and Birch Bay as well as Divine hot tubs. Also used in Luxury Series spas. Has threads on bottom. Filter Specs and Dimensions: 8 1/4" Long 6" Wide (outer diameter)...Now: $29.77RRP: $49.89 -
XLS-418 Rainbow Dynamic 35 SqFt 5 x 9 1/4 Filter C-4335 FC-2385
Now: $25.77RRP: $38.88XLS-418 Rainbow Dynamic 35SqFt 5 inch Wide x 9 1/4 Inch Tall Filter. Only 1 left of the Excel brand. Equal or better brand will be subbed once that one is gone. Diameter: 4 15/16″ Length: 9 1/4″ Top Hole Size: 2...Now: $25.77RRP: $38.88 -
RJ Filtration Ak-50010 100sqft 17 Inch Filter C-6310 PWWDFX100
Now: $64.18RRP: $83.99RJ Filtration Ak-50010 100sqft 17 Inch Filter C-6310 PWWDFX100 Outer Diameter: 6 1/2" Length: 17 1/4" Bottom 2 3/8" open hole Top 2 3/8" open hole Replacement option for: Pleatco: PWWDFX100 Unicel: C-6310 Waterway 817-0019 This quality replacement...Now: $64.18RRP: $83.99 -
XLS-443 Freeflow Spa Filter TLX RLX FC-2399 4CH-22 PFF25P4
Now: $26.77RRP: $41.88DISCONTINUED see FC-2399 XLS-443 Freeflow Spa Filter TLX RLX replaces FC-2399 4CH-22 PFF25P4 Diameter: 5" Length: 6-5/8" Top: 2-1/8" Bottom: 1-1/2" Mpt threaded XLS-443 Filter type used in Watkins Freeflow spas and by other hot tub...Now: $26.77RRP: $41.88 -
Softub Spa Filter 5000 Screw-On T-140
Now: $34.77RRP: $41.45DISCONTINUED - see other filters like H60251, PTL20W-SV-P4 or P6CH-25 Softub Spa Filter 5000 Screw-On for T-140 and older Soft Tub models. Diameter: 6 Inch Length: 5-1/2 Inch Bottom: 1-1/2 Inch MPT threaded Top: Handle 25 sqft filter This is the Softub...Now: $34.77RRP: $41.45 -
Maax Elite 35 SqFt Filters 4-PACK 104309 Vita
Now: $147.24RRP: $199.56Maax Elite 35 SqFt Filter 4-PACK 104309 for Elite, Maax and Vita spas. This is a 4-pack of the popular 104309 filter. Maax 104309 Filter dimensions: 5 5/8" Diameter 8" Long Top Handle Bottom 1 1/2 inch MPT threads ( 1 1/2 inch inner...Now: $147.24RRP: $199.56 -
Viking Spa 50 SqFt Cartridge Filter 89750
Now: $34.77RRP: $43.9989750 is a 50sqft replacement cartridge filter for Viking Spas. Diameter: 6" Length: 8-1/4" Top: Handle Bottom: 1-1/2" Coarse Threads 50sqftNow: $34.77RRP: $43.99 -
Coast Spa Microban Filter 817-1010M
Now: $93.24RRP: $128.66Coast Spa Microban Filter 817-1010M is a 100sqft filter for select model Coast Spas. Filter is 23 inches tall and 5 inches wide. The center hole is just over 2" wide.Now: $93.24RRP: $128.66 -
Pleatco PMAX50P3 35sqft Filter 1 1/2 SAE
Now: $32.77RRP: $48.99DISCONTINUED - see substitute filter H50354 Pleatco PMAX50P3 35sqft Filter 1 1/2 SAE threads on bottom and handle on top. Filter type used in Maax/Coleman and other brand hot tubs. Diameter 5-3/4" Length 8" Top Style Handle Bottom Style SAE...Now: $32.77RRP: $48.99